Add 42/75 and 45/42
1st number: 42/75, 2nd number: 1 3/42
42/75 + 45/42 is 571/350.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
42/75 = 42 × 14/75 × 14 = 588/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
45/42 = 45 × 25/42 × 25 = 1125/1050 - Add the two like fractions:
588/1050 + 1125/1050 = 588 + 1125/1050 = 1713/1050 - 1713/1050 simplified gives 571/350
- So, 42/75 + 45/42 = 571/350
In mixed form: 1221/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75+45/42 42/75+90/42 42/75+45/84